Code Quality Rank: L4
Programming language: Ruby
Tags: Database Drivers    
Latest version: v2.12.0.rc0

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MongoDB Ruby Driver Code Climate Gem Version

The officially supported Ruby driver for MongoDB.


High level documentation and usage examples are located here.

API docs can be found here.

Support & Feedback

For issues, questions or feedback related to the Ruby driver, please look into our support channels. Please do not email any of the Ruby developers directly with issues or questions - you're more likely to get an answer quickly on the MongoDB Community Forum.

Bugs & Feature Requests

Do you have a bug to report or a feature request to make?

  1. Visit our issue tracker and login (or create an account if necessary).
  2. Navigate to the RUBY project.
  3. Click 'Create Issue' and fill out all the applicable form fields.

When reporting an issue, please keep in mind that all information in JIRA for all driver projects (ex. RUBY, CSHARP, JAVA) and the Core Server (ex. SERVER) project is PUBLICLY visible.


  • Provide as much information as possible about the issue.
  • Provide detailed steps for reproducing the issue.
  • Provide any applicable code snippets, stack traces and log data.
  • Specify version information for the driver and MongoDB.


  • Provide any sensitive data or server logs.
  • Report potential security issues publicly (see 'Security Issues').

Security Issues

If you’ve identified a potential security related issue in a driver or any other MongoDB project, please report it by following the instructions here.

Running Tests

The driver uses RSpec as its primary testing tool. Most tests require a running MongoDB server. To test the driver against a single-node (standalone) deployment, first launch a server:

mkdir /tmp/mrb
mongod --dbpath /tmp/mrb --bind_ip --setParameter enableTestCommands=1

... then run the tests:

bundle exec rake

It is possible to run tests in a specific file, as well as use other test invocations supported by RSpec:

bundle exec rspec path/to/spec.rb:42

Note that certain user accounts have to be created for individual tests to succeed, and they are not created when the individual tests are run. The user accounts are created if you run rake as mentioned above, and you can also create them by running:

bundle exec rake spec:prepare

For further information about supported cluster configurations and how to configure the test suite, please see the README in the spec directory.

Release History

Full release notes and release history are available here.


Copyright (C) 2009-2020 MongoDB, Inc.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at


Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

*Note that all licence references and agreements mentioned in the mongo-ruby-driver README section above are relevant to that project's source code only.